Farming Systems Research to Improve the Livelihood of Small Farmers: Discussion

Autor:	Welsch, Delane E.
Zdroj:	American Journal of Agricultural Economics, 1978 Dec 01. 60(5), 819-820.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/1240098 Zobrazit plný text záznamu